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J/A+A/298/115
  ROSAT study of Praesepe (Randish+, 1995)
Post annotation
img(gal)
1.J/A+A/298/115/table4X-ray properties of the detected Praesepe candidates (68 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  Id  X-ray number (meta.id;meta.main)
  n_Id (char) [*] Note (meta.note)
  ML  Maximum Likelihood (ML) algorithm (stat.likelihood)
  dRA arcsec (n) []? Offset in right ascension (pos.eq.ra;arith.diff)
  dDE arcsec (n) []? Offset in declination (pos.eq.dec;arith.diff)
  ct ct/s Counts (phot.count;em.X-ray)
  e_ct ct/s rms uncertainty on counts (1 sigma error) (stat.error)
  Lx 10+22W X-ray luminosity (phys.luminosity;em.X-ray)
  e_Lx 10+22W rms uncertainty on Lx (1 sigma error) (stat.error)
  Lx/Lbol  X-ray over bolometric luminosity (phys.luminosity;arith.ratio)
  l_HardR (char) [>] limit flag on HardR (meta.code.error)
  HardR  Hardness ratio (phot.flux;arith.ratio)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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